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3 years ago

Graph each function (equation) by making a table y = |2x| + 1please help

Mathematics

1 answer:

Svetradugi [14.3K]3 years ago

8 0

Answer:

the table:

x | y

-2 | 5

-1 | 3

0 | 1

1 | 3

2 | 5

for the graph: go up from the middle point, then right then up by two and repeat on the other side as well, should look something like this

<h2> ( up one, go left, up 2) ∨ (up one, go right up two)</h2>

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The radius of a circle is 4 feet. What is the area of a sector bounded by a 45° arc?

DIA [1.3K]

Answer:

$Area = 6.28\ ft^2$ or $Area = 2 \pi\ ft^2$

Step-by-step explanation:

Given

$Radius, r = 4ft$

$Angle, \theta = 45$

Required

Calculate the area of the sector

When angle is given in degrees, the area of sector is calculated as thus;

$Area = \frac{\theta}{360} * \pi * r^2$

$Substitute\ r = 4\ and\ \theta = 45$

$Area = \frac{\theta}{360} * \pi * r^2$ becomes

$Area = \frac{45}{360} * \pi * 4^2$

$Area = \frac{45}{360} * \pi * 16$

$Area = \frac{45*16}{360} * \pi$

$Area = \frac{720}{360} * \pi$

$Area = 2 * \pi$

$Area = 2 \pi\ ft^2$

The above is the area in terms of π

Solving further.... (Take π as 3.14)

$Area = 2 \pi\ ft^2$ becomes

$Area = 2 * 3.14\ ft^2$

$Area = 6.28\ ft^2$

Hence, the area of the sector is

$Area = 6.28\ ft^2$ or $Area = 2 \pi\ ft^2$

8 0

3 years ago

Solve the equation. 7+6=-3y+26<br> A. y= -8<br> B. y= -5<br> C. y= 5<br> D. y= 8

Umnica [9.8K]

The correct answer is c y=5

7 0

3 years ago

Please, quickly. Sorry for the poor picture quality.

Nimfa-mama [501]

Answer:

<2 is 50º

Step-by-step explanation:

you first want to find what x is, so you would put the two equations in an (equation)=(equation) and get x and the number across from each other, that would be x=15º. you then plug in the 15 to the equation, and solve that, resulting in 130º. The angle is going to be 180 in total, so subtract the 130º from 180º and you would get 50º

3 0

3 years ago

X over 8 = -5 . What is X?

valkas [14]

Answer: 40

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Please help!!!!!!! How many inches would a point on the outer edge of the large gear travel in a 150º rotation? (The gear has a

damaskus [11]

In a full rotation, 360°, a point on the edge of a gear would travel a distance equal to its circumference. The circumference of a circle is:

C=2πr, and since we are only traveling 150°, we need to set up an appropriate ratio for circumference to the distance the point travels:

d/C=150/360

d=5C/12 and since C=2πr

d=10πr/12

d=5πr/12, and since r=4in

d=5*4π/12 in

d=20π/12 in

d=5π/3 in

d≈5.24 in (to nearest hundredth of an inch)

4 0

3 years ago

Graph each function (equation) by making a table y = |2x| + 1please help​

Graph each function (equation) by making a table y = |2x| + 1please help